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3131289070 = 2571313126267
BaseRepresentation
bin1011101010100011…
…1010110111101110
322002020001222002021
42322220322313232
522403102222240
61234414220354
7140411342440
oct27250726756
98066058067
103131289070
111367592908
127347b46ba
133ab961990
14219c20490
15134d7954a
hexbaa3adee

3131289070 has 64 divisors (see below), whose sum is σ = 6990230016. Its totient is φ = 983399040.

The previous prime is 3131289061. The next prime is 3131289089. The reversal of 3131289070 is 709821313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106077 + ... + 132343.

It is an arithmetic number, because the mean of its divisors is an integer number (109222344).

Almost surely, 23131289070 is an apocalyptic number.

3131289070 is an abundant number, since it is smaller than the sum of its proper divisors (3858940946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3131289070 is a wasteful number, since it uses less digits than its factorization.

3131289070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26425.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 3131289070 is about 55957.9223166836. The cubic root of 3131289070 is about 1462.9889773627.

The spelling of 3131289070 in words is "three billion, one hundred thirty-one million, two hundred eighty-nine thousand, seventy".

Divisors: 1 2 5 7 10 13 14 26 35 65 70 91 130 131 182 262 455 655 910 917 1310 1703 1834 3406 4585 8515 9170 11921 17030 23842 26267 52534 59605 119210 131335 183869 262670 341471 367738 682942 919345 1707355 1838690 2390297 3414710 3440977 4780594 6881954 11951485 17204885 23902970 24086839 34409770 44732701 48173678 89465402 120434195 223663505 240868390 313128907 447327010 626257814 1565644535 3131289070